下列各组粒子具有相同质子数和电子数的是 [ ]
A．F－和NH4+
B．H2O和OH－
C．CH4和H2O2
D．H3O+和NH4+
答案：D
63. The plan for a new airport have been scrapped __________ an extension to the old one.
A．in favour
B．out of favour
C．in favour of
D．Favourite
对单位违反治安管理的，只处罚直接责任人员。
